<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 搜索与添加区域 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template v-slot:default="scope"
            ><!--通过v-slot接收当前作用域的数据-->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template v-slot:default="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="30%" @close="addDialogClosed">
      <!-- 内容主体区 -->
      <el-form
        :model="addFrom"
        :rules="addFromRules"
        ref="addFromRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addFrom.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addFrom.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addFrom.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addFrom.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser"
          >确 定</el-button
        >
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
  title="修改用户信息"
  :visible.sync="editDialogVisible"
  width="50%"
  @close="editDialogClose"
  >
  <el-form ref="editFormRef" :model="editForm" label-width="70px" :rules="editFormRules">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
    <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email" ></el-input>
  </el-form-item>
    <el-form-item label="手机号" prop="mobile">
    <el-input v-model="editForm.mobile" ></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed"
  >
  <p>当前的用户：{{userInfo.username}}</p>
  <p>当前的角色：{{userInfo.role_name}}</p>
  <p>分配新角色：
    <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
  </p>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
  name: "Users",
  components: {},
  directives: {},
  data() {
       // 验证手机号的规则
        var checkMobile = (rule,value,cb)=>{
            const regMobile= /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if (regMobile.test(value)) {
                    return cb()
            }
                cb(new Error('手机号码格式不正确'))
        
        }
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "", //查询参数
        pagenum: 1, //当前页码
        pagesize: 2, //每页显示条数
      },
      //用户列表
      userlist: [], 
      //总数据数
      total: 0, 
      //控制添加对话框的显示与隐藏
      addDialogVisible:false,
      //添加用户的表单数据
      addFrom:{
          username:'',
          password:'',
          email:'',
          mobile:'',
      },
      //添加表单的验证规则对象
      addFromRules:{
          username:[
              { required: true, message: '请输入用户名', trigger: 'blur' },
              { min: 3, max: 10, message: '用户名长度在 3 到 10 个字符', trigger: 'blur' }
          ],
           password:[
              { required: true, message: '请输入密码', trigger: 'blur' },
              { min: 6, max: 15, message: '密码长度在 6 到 15 个字符', trigger: 'blur' }
          ],
           email:[
              { required: true, message: '请输入邮箱', trigger: 'blur' },
              { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
          ],
          mobile:[
              { required: true, message: '请输入手机号', trigger: 'blur' },
              { validator: checkMobile, message: '请输入正确的手机号', trigger: ['blur', 'change'] }
          ],

      },
      //控制修改用户对话框的显示与隐藏
      editDialogVisible:false,
      //查询到的用户信息对象
      editForm:{},
      //修改表单的验证规则对象
      editFormRules:{
        email:[
              { required: true, message: '请输入邮箱', trigger: 'blur' },
              { type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
          ],
          mobile:[
              { required: true, message: '请输入手机号', trigger: 'blur' },
              { validator: checkMobile, message: '请输入正确的手机号', trigger: ['blur', 'change'] }
          ],
      },
      // 控制分配角色对话框的显示与隐藏
      setRoleDialogVisible:false,
      //需要被分配角色的用户信息
      userInfo:{},
      //所有角色的数据列表
      rolesList:[],
      //已选中的角色id
      selectedRoleId:''


    };
  },
  created() {
    this.getUserList();
  },
  mounted() {},
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败！");
      }
      this.userlist = res.data.users;
      this.total = res.data.total;
      console.log(res);
    },
    // 监听 pagesize 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
      // console.log(newSize)
    },
    // 监听 页码值 改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听 switch 开关状态的改变
    async userStateChanged(userInfo) {
      console.log(userInfo);
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      console.log(res);
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("更新用户状态失败！");
      }
      this.$message.success("更新用户状态成功！");
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed(){
        this.$refs.addFromRef.resetFields()
    },
    //点击按钮，添加新用户
    addUser(){
        this.$refs.addFromRef.validate(async valid=>{
            console.log(valid)
            if (!valid) {
                return
            }
            //可以发起添加用户的网络请求
            const {data:res}=await this.$http.post('users',this.addFrom)
            if (res.meta.status!==201) {
                return this.$message.error('添加用户失败！')
            }
            this.$message.success('添加用户成功！')
            //隐藏添加用户的对话框
            this.addDialogVisible=false
            //重新获取用户列表数据
            this.getUserList()
        })
    },
    //展示编辑用户的对话框
    async showEditDialog(id){
      // console.log(id)
      const {data:res} =await this.$http.get('users/'+id)
      if (res.meta.status!==200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editForm=res.data
      this.editDialogVisible=true
    },
    //监听修改用户对话框的关闭事件
    editDialogClose(){
      this.$refs.editFormRef.resetFields()
    },
    //修改用户信息并提交
    editUserInfo(){
      this.$refs.editFormRef.validate(async valid=>{
        if (!valid) {
          return
        }
        //发起修改用户信息的数据请求
         const {data:res}=await this.$http.put('users/'+this.editForm.id,
         {email: this.editForm.email,mobile: this.editForm.mobile})

            if (res.meta.status!==200) {
                return this.$message.error('更新用户信息失败！')
            }
            this.$message.success('更新用户信息成功！')
            //隐藏更新用户的对话框
            this.editDialogVisible=false
            //重新获取用户列表数据
            this.getUserList()
      })
    },
    //根据id删除对应的用户信息
    async removUserById(id){
      // 询问用户是否删除数据
       const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        //如果用户确认删除，则返回值为字符串 confirm
        //如果用户取消删除，则返回值为字符串 cancel
        // console.log(confirmResult)
        if (confirmResult!=='confirm') {
          return this.$message.info('已经取消删除')
        }
        // console.log('确认了删除')
        const {data:res}=await this.$http.delete('users/'+id)
        if (res.meta.status!==200) {
          return this.$message.error('删除用户失败！')
        }
        this.$message.success('删除用户成功！')
        //重新获取用户列表数据
            this.getUserList()

    },
    //展示分配角色的对话框
    async setRole(userInfo){
      this.userInfo=userInfo
      //在展示对话框前获取所有角色列表
       const {data:res}=await this.$http.get('roles')
       if (res.meta.status!==200) {
                return this.$message.error('获取角色列表失败！')
            }
      
      this.rolesList=res.data
      this.setRoleDialogVisible=true
    },
    //点击按钮分配角色
    async saveRoleInfo(){
      if (!this.selectedRoleId) {
        return this.$message.error('请选择分配的角色！')
      }
      const {data:res} =await this.$http.put(
        `users/${this.userInfo.id}/role`,
      {
        rid:this.selectedRoleId
        }
        )
        console.log(res)
      if (res.meta.status!==200) {
        return this.$message.error('更新角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible=false
    },
    //监听分配角色对话框的关闭事件
    setRoleDialogClosed(){
      this.selectedRoleId=''
      this.userInfo={}

    },
  },
};
</script>

<style lang="less" scoped>
.el-table {
  margin-top: 15px;
  font-size: 12px;
}
.el-pagination {
  margin-top: 15px;
}
</style>